just a mile away from where 5- year-old gabriel martinez, jr., was killed a year ago to the day in front of the family's taco truck. >> these fools out here killing each other. >> reporter: of the 131 homicide victims this year, a dozen were under 18. >> have been watched 12 young people get murdered this year is very, very disheartening, discouraging and embarrassing to the city and myself as police chief. >> reporter: the police chief announced department changes for 2013. a